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PDF NJW4305A Data sheet ( Hoja de datos )
| Número de pieza | NJW4305A | |
| Descripción | 3 PHASE BRUSHLESS DC MOTOR CONTROLL IC | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJW4305A
3 PHASE BRUSHLESS DC MOTOR CONTROLL IC
■ GENERAL DESCRIPTION
The NJW4305A is a 3 phase brush less DC motor controller IC.
It uses hall element signal inputs and generates motor driving
waveform.
Output pre-driver is optimized to work with external Power MOS
transistor for better power handling.
Using the NJW4305A, 3-phase DC motor application with
speed control feature can be easily achieved
■ PACKAGE OUTLINE
NJW4305AVC3
(SSOP20-C3)
■ FEATURES
● Maximum Supply Voltage
: 40V
● Operating Voltage Range
: 7.3V to 36V
● Operating Ambient Temperature : - 40ºC to + 105ºC
● Quiescent Current
: 3.2mA ( typ. ) at VCC=24V
● FG Output
● Lock Protection Function (Auto Release)
● Forward / Reverse Function
● Over Current Detection Function
● Thermal Shutdown Function
● UVLO Protection Circuit
● Direct PWM Control
: up to 150kHz
● Bi-CDMOS Technology
● Package Outline
: SSOP20-C3
Ver.2014-03-06
-1-
1 page  
NJW4305A
■ ELECTRICAL CHARACTERISTICS
( Ta = 25°C, VCC=24V, H1+=H3+=3V, H2+=1V, H1-=H2-=H3-=2V, FR=0V, VERR=5V, OSC=1V, Ct=ILIMIT= 0V )
PARAMETER
► GENERAL
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
Quiescent Current 1
ICC1
Quiescent Current 2
ICC2
► THERMAL SHUTDOWN BLOCK (TSD)
VCC = 12V
VCC = 24V
2.4 2.9 3.8 mA
2.7 3.2 4.1 mA
TSD Operating Temperature
TTSD1
TSD Recovery Temperature
TSD Hysteresis Temperature
TTSD2
ΔTTSD
► UNDER VOLTAGE LOCK OUT BLOCK
- 180 -
- 130 -
- 50 -
°C
°C
°C
UVLO Detect Voltage
VDUVLO VCC Decreasing
UVLO Recovery Voltage
UVLO Hysteresis Voltage Range
VRUVLO
ΔVUVLO
VCC Increasing
► LOCK DETECT BLOCK ( Ct Pin )
Lock Protection ON time
tON Ct = 0.47µF
High Level Voltage
VHCt
Low Level Voltage
Lock Charge Current
VLCt
ICHGCt
Ct = 0V → 2.5V
Lock Discharge Current
IDCHGCt1
Lock Charge Discharge
Current Ratio
ICHGCt / IDCHGCt
► HALLAMP BLOCK ( H1+, H1-, H2+, H2-, H3+, H3- Pin )
Hysteresis Voltage Range
ΔVHYSH
Input Bias Current
IBIH
► HIGH SIDE BLOCK ( UH, VH, WH Pin )
at 1 input
6.0 6.45 7.19
6.01 6.6 7.2
- 0.15 -
0.18 0.25 0.34
3.2 3.4 3.6
0.8 1.0 1.2
5.0 6.5 8.5
0.3 0.65 0.9
- 10 -
V
V
V
s
V
V
µA
µA
-
10 30 50 mV
- - 2 µA
High Side Output Voltage
VOLH
High Side Leak Current
IOLEAKH
► LOW SIDE BLOCK ( UL, VL, WL Pin )
ISINK = 50mA
VOH = 36V
- 0.5 1.2 V
- - 1 µA
Low Side Output Voltage1
VOHL1
Low Side Output Voltage2
VOHL2
Low Side Output L Voltage
VOLL
Low Side Clamp Voltage
VOCLL
► FG OUTPUT BLOCK ( FG Pin )
VCC = 12V, ISOURCE = 50mA
VCC = 24V, ISOURCE = 50mA
ISINK = 50mA
VCC = 36V, ISOURCE = 0.1mA
8.0 10.0
-
8.0 10.0
-
- 0.5 1.2
- - 16.0
V
V
V
V
Output Voltage
VOFG
IFG = 10mA
Leak Current
ILEAKFG
VFG = 5V
► OVER CURRENT DETECT BLOCK ( ILIMIT Pin )
- 0.2 0.6 V
- - 1 µA
Detect Voltage
VDETLIM
Input Bias Current
IBLIM
► ERROR AMP BLOCK ( VERR Pin )
0.25 0.28 0.31
- 1.0 2.0
V
µA
PWM0% Detect Voltage
VPWM1VERR
PWM100% Detect Voltage
VPWM2VERR
Input Bias Current
IBVERR
► OSCILLATOR BLOCK ( OSC Pin )
Output ON Duty = 0%
Output ON Duty = 100%
- - 0.6 V
3.5 - - V
- 1.0 2.0 µA
Saw Wave Peak Voltage
Saw Wave Bottom Voltage
OSC Charge Current
OSC Discharge Current
Oscillation Frequency
► CONTROL INPUT BLOCK
VPOSC
VBOSC
ICHGOSC
IDCHGOSC
fOSC
OSC = 0V → 2.5V
OSC = 5V → 2.5V
COSC = 1000pF
2.7 3.0 3.3
V
0.8 1.0 1.2
V
50 80 120 µA
0.6 1.3 2.0 mA
- 35 50 kHz
H Level Input Current
L Level Input Current
Pull Down Resistance
IHIN VIN = 5V
ILIN VIN = 0V
RIN
30 50 100 µA
- - 1 µA
- 100 - kΩ
Ver.2014-03-06
-5-
5 Page 
NJW4305A
2. Forward Rotation at PWM
0 60
VCC 24V
Rotor Electrical Position (deg)
120 180 240 300 360 420 480 540 600 660 720 780 840 900
H1
H2
H3
FR
L
VERR
OSC
Ct
0V
ILimit
0V
FG
UH
VH
WH
UL
VL
WL
Condition
Forward Rotation
Forward Rotation DUTY50%
Forward Rotation DUTY0%
Ver.2014-03-06
- 11 -
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet NJW4305A.PDF ] | |
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